LiveActive security incident?Get immediate response
CVE Record

CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable()

In the Linux kernel, the following vulnerability has been resolved: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() pru_rproc_set_ctable() accessed rproc->priv before the IS_ERR_OR_NULL check, which could lead to a null pointer dereference. Move the pru assignment, ensuring we never dereference a NULL rproc pointer.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2025-40033 is a Linux kernel flaw in remoteproc PRU handling where a null pointer could be dereferenced. The likely impact is system instability or denial of service, not confirmed data theft or remote code execution. Public sources do not provide CVSS, CWE, or confirmed exploitation.

Executive priority

Handle through normal kernel patch governance unless PRU remoteproc is used on critical systems. There is no source-backed evidence of active exploitation, but kernel NULL dereferences can affect availability.

Technical view

The issue is in pru_rproc_set_ctable(). The code accessed rproc->priv before checking whether rproc was NULL or an error pointer. Kernel stable commits move that assignment after validation to prevent a NULL pointer dereference.

Likely exposure

Exposure appears limited to Linux systems running affected kernel builds with the PRU remoteproc code present and reachable. The provided affected-version data is incomplete and branch semantics are unclear, so confirm against kernel or distribution advisories.

Exploitation context

The source bundle does not cite active exploitation, and KEV status is false. No public exploit details are provided. Treat this as a kernel reliability and local platform exposure issue unless vendor guidance states otherwise.

Researcher notes

The evidence identifies a defensive ordering fix for rproc validation. The bundle lacks CVSS, CWE, trigger conditions, privilege requirements, and affected branch range clarity, so avoid over-scoping without vendor-specific confirmation.

Mitigation direction

  • Update to a vendor-supported kernel containing the referenced stable fixes.
  • Check your Linux distribution advisory for exact fixed package versions.
  • Prioritize systems using PRU remoteproc functionality or related hardware support.
  • Track this CVE in kernel patch compliance reporting.

Validation and detection

  • Inventory Linux kernel versions across affected environments.
  • Check whether PRU remoteproc support is built, packaged, or loaded.
  • Map deployed kernels to the referenced stable commits or distro fixes.
  • Review kernel logs for crashes involving pru_rproc_set_ctable or remoteproc PRU.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2025-40033 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
5Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux102853400321baea2527917e6e89be33508c3e18, 102853400321baea2527917e6e89be33508c3e18, 102853400321baea2527917e6e89be33508c3e18, 102853400321baea2527917e6e89be33508c3e18unaffected
LinuxLinux6.3, 0, 6.6.112, 6.12.53, 6.17.3, 6.18affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.